Which of these would make the most sense/sound the coolest for the name of a Japanese vocab learning RPG?

こんにちは! (Unless it’s not daytime when you’re looking at this post)

As the title says, looking for opinions on what would be a cool name for a Vocab game for beginners that would preferably still make sense in Japanese (we’re still learning ourselves, so we want to make sure it’s not completely incomprehensible).

The one’s were considering at the moment are as follows:

Go! Go! Goi Goshin 語彙護身 (Vocabulary self-defense)
Go! Go! Goi Musha 語彙武者 (Vocabulary Warrior)
Go! Go! Tango Senshi 単語戦士 (Word Warrior)

Any thoughts, constructive critiques, and opinions are appreciated!!!

どうもありがとうございます!